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From: "Serge E. Hallyn" <serge@hallyn.com>
To: ntl@pobox.com
Cc: linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org
Subject: Re: [PATCH 01/10] Make exec_mmap extern
Date: Sun, 3 Apr 2011 11:56:09 -0500	[thread overview]
Message-ID: <20110403165609.GA15044@hallyn.com> (raw)
In-Reply-To: <1298936432-29607-2-git-send-email-ntl@pobox.com>

Quoting ntl@pobox.com (ntl@pobox.com):
> From: Nathan Lynch <ntl@pobox.com>
> 
> Restoration of process state from a checkpoint image is similar to
> exec in that the calling task's mm is replaced.  Make exec_mmap
> available for this purpose.
> 
> Signed-off-by: Oren Laadan <orenl@cs.columbia.edu>
> [ntl: extracted from Oren's "c/r: dump memory address space (private memory)"]
> Signed-off-by: Nathan Lynch <ntl@pobox.com>

Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>

> ---
>  fs/exec.c          |    2 +-
>  include/linux/mm.h |    3 +++
>  2 files changed, 4 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/exec.c b/fs/exec.c
> index c62efcb..9d8c27a 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -767,7 +767,7 @@ int kernel_read(struct file *file, loff_t offset,
>  
>  EXPORT_SYMBOL(kernel_read);
>  
> -static int exec_mmap(struct mm_struct *mm)
> +int exec_mmap(struct mm_struct *mm)
>  {
>  	struct task_struct *tsk;
>  	struct mm_struct * old_mm, *active_mm;
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 721f451..5397237 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1321,6 +1321,9 @@ extern int do_munmap(struct mm_struct *, unsigned long, size_t);
>  
>  extern unsigned long do_brk(unsigned long, unsigned long);
>  
> +/* fs/exec.c */
> +extern int exec_mmap(struct mm_struct *mm);
> +
>  /* filemap.c */
>  extern unsigned long page_unuse(struct page *);
>  extern void truncate_inode_pages(struct address_space *, loff_t);
> -- 
> 1.7.4
> 
> _______________________________________________
> Containers mailing list
> Containers@lists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/containers

  reply	other threads:[~2011-04-03 16:56 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-28 23:40 [RFC 00/10] container-based checkpoint/restart prototype ntl
2011-02-28 23:40 ` [PATCH 01/10] Make exec_mmap extern ntl
2011-04-03 16:56   ` Serge E. Hallyn [this message]
2011-02-28 23:40 ` [PATCH 02/10] Introduce mm_has_pending_aio() helper ntl
2011-03-01 15:40   ` Jeff Moyer
2011-03-01 16:04     ` Nathan Lynch
2011-02-28 23:40 ` [PATCH 03/10] Introduce has_locks_with_owner() helper ntl
2011-04-03 18:55   ` Serge E. Hallyn
2011-02-28 23:40 ` [PATCH 04/10] Introduce vfs_fcntl() helper ntl
2011-04-03 18:57   ` Serge E. Hallyn
2011-02-28 23:40 ` [PATCH 05/10] Core checkpoint/restart support code ntl
2011-04-03 19:03   ` Serge E. Hallyn
2011-04-04 15:00     ` Nathan Lynch
2011-04-04 15:10       ` Serge E. Hallyn
2011-04-04 15:40         ` Nathan Lynch
2011-04-04 16:27           ` Serge E. Hallyn
2011-04-04 17:32             ` Oren Laadan
2011-04-04 21:43               ` Nathan Lynch
2011-04-04 22:03                 ` Serge E. Hallyn
2011-04-04 23:42                   ` Dan Smith
2011-04-05  2:17                     ` Serge E. Hallyn
2011-04-05 19:18                       ` Nathan Lynch
2011-04-04 22:29                 ` Matt Helsley
2011-04-04 17:41             ` Andrew Morton
2011-04-04 18:51               ` Serge E. Hallyn
2011-04-04 19:42                 ` Andrew Morton
2011-04-04 20:29                   ` Serge E. Hallyn
2011-04-04 21:55                   ` Matt Helsley
2011-04-04 23:15                     ` Andrew Morton
2011-04-04 23:16                     ` Valdis.Kletnieks
2011-04-04 23:43                       ` Matt Helsley
2011-04-04 22:11                   ` Serge E. Hallyn
2011-04-04 22:53                   ` Serge E. Hallyn
2011-04-04 21:20             ` Nathan Lynch
2011-04-04 21:53               ` Serge E. Hallyn
2011-02-28 23:40 ` [PATCH 06/10] Checkpoint/restart mm support ntl
2011-02-28 23:40 ` [PATCH 07/10] Checkpoint/restart vfs support ntl
2011-02-28 23:40 ` [PATCH 08/10] Add generic '->checkpoint' f_op to ext filesystems ntl
2011-02-28 23:40 ` [PATCH 09/10] Add generic '->checkpoint()' f_op to simple char devices ntl
2011-02-28 23:40 ` [PATCH 10/10] x86_32 support for checkpoint/restart ntl
2011-03-01  1:08 ` [RFC 00/10] container-based checkpoint/restart prototype Nathan Lynch

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